Changes
author web page doesnt exist anymore, using archive.org
== A Surgical Guide To The Amstrad Notepad Computer ==
This page is based on Hans-Jürgen Böhling's "surgical guide to the Amstrad NC". The original document is avaliabe here [https://web.archive.org/web/20141214160211/http://home.arcor.de/h.boehling/nc100.htm] (author's website) or here [[Media:sg-nc100.zip]] (local copy)
=== Amstrad Notepad Computer - What is it? ===
Ã────┼───────────────┼────────┼───────────────────────────────────────Â
║302 │NEC Japan │4*34=136│µPD 65034 ║
║ │D65034GD093 │PLCC 136│Customer Chip 136│Custom ASIC ║
Ã────┼───────────────┼────────┼───────────────────────────────────────Â
║303 │NEC Japan │2*16= 32│27C2001 = CMOS EPROM 256K*8 bit ║
</pre>
=== The Customer Custom Chip (IC302) ===
<pre>
Type : µPD 65034
Manufacturer : NEC Electronics
Description : Customer Custom Chip with multiple funktions
Process : CMOS
Supply Voltage : +5V
Package : PLCC 136
The chip has multiple funktionsfunctions:
- Clock generator for CPU and UART
- Built-in 26*4 bit RAM
- 4-bit bidirectional data bus
- 4-bit adress address input
- Directly connectable with CPU bus
- Capable of battery backup
